Using "yet" to express a contrast or expectation:
* I haven't seen the movie yet.
* She's only 10, but she's already so smart yet.
Using "yet" to express doubt or uncertainty:
* I don't know why they chose him, yet.
* He claims to be innocent, yet.
Using "yet" in a more literary context:
* The sun dipped below the horizon, painting the sky in shades of orange and purple, yet the air remained warm.
The key is to ensure the sentence makes sense grammatically and conveys the intended meaning.